Home / 2,976.47-4,108.35-1,856.75

Finding the Fourth Proportional to 2,976.47, 4,108.35 and 1,856.75

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Solution

The fourth proportional to 2,976.47, 4,108.35 and 1,856.75 is: 2,562.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.47 : 4,108.35 = 1,856.75 : x
  2. Step 2: Convert to fraction form
    2,976.47/4,108.35 = 1,856.75/x
  3. Step 3: Cross multiply
    2,976.47x = 4,108.35 × 1,856.75
  4. Step 4: Simplify right side
    2,976.47x = 7,628,178.86
  5. Step 5: Solve for x
    x = 7,628,178.86/2,976.47
  6. Step 6: Final answer
    x = 2,562.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.